You can't. You have to let apple commandeer your P.C. They have an application called itunes that you must install. Itunes encrypts all of your music so that it is only useful on Apple gadgets. After that you may only listen on your ipod or with itunes. They did that to increase revenue from music sales. Sell it and get a better player that will let you share music. Otherwise you will need an apple ipod usb connector, and then download itunes from Apple. Once you install it it will covert all of your current music files, and offer to sell you music downloads. With the program running, just plug in the cord an add files to the "sync" list.